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August 9, 2025 was a
Saturday

August 9, 2025 was a Saturday — that’s 304 days ago. Below you can see exactly how to work the weekday out in your head with the Doomsday algorithm, along with a few other facts about the date.

Weekday
Saturday
Day of year
221 of 365
ISO week
Week 32
Leap year?
No
Zodiac sign
Leo
Days ago
304

How to solve: August 9, 2025

  1. 1
    Century anchor2000s→Tuesday (2)
    Practice →
  2. 2
    Divide by 1225 ÷ 12→2
    Practice →
  3. 3
    Remainder of 1225 % 12→1
    Practice →
  4. 4
    Divide remainder by 41 ÷ 4→0
    Practice →
  5. 5
    Year's doomsday(2 + 2 + 1 + 0) % 7→5 → Friday
    Practice →
  6. 6
    Month doomsdayAugust→8th
    Practice →
  7. 7
    Distance9 − 8→1
    Practice →
  8. 8
    Final answer(5 + 1) % 7→6 → Saturday

On this day in history

  • 1974Richard Nixon resigns presidency

Related dates

Day beforeAugust 8, 2025 — FridayDay afterAugust 10, 2025 — SundayOne year earlierAugust 9, 2024 — FridayOne year laterAugust 9, 2026 — Sunday
Want to be able to do this for any date in seconds? Read the guide or practice the algorithm.
Did you know? Did you know that in ancient Rome, Saturday was called 'dies Saturni', which influenced its name in various languages?